SEA - YHZ

C$ 330 Find Cheap Flights from Seattle to Halifax

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Halifax departing on 2/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Halifax

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Halifax, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Halifax, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Seattle to Halifax (SEA-YHZ)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Halifax that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Halifax

jue., 2 oct. - dom., 12 oct.
WestJet Logo
1:50 p.m. - 5:59 a.m.SEA-YHZ
12h 09m2 stops
WestJet Logo
7:00 a.m. - 12:35 p.m.YHZ-SEA
9h 35m1 stop
C$ 330WestJet
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mar., 7 oct. - dom., 12 oct.
WestJet Logo
7:05 a.m. - 7:09 p.m.SEA-YHZ
8h 04m1 stop
WestJet Logo
7:00 a.m. - 12:35 p.m.YHZ-SEA
9h 35m1 stop
C$ 338WestJet
Find Deal
vie., 10 oct. - dom., 12 oct.
WestJet Logo
1:50 p.m. - 5:59 a.m.SEA-YHZ
12h 09m2 stops
WestJet Logo
7:00 a.m. - 12:35 p.m.YHZ-SEA
9h 35m1 stop
C$ 341WestJet
Find Deal
vie., 10 oct. - dom., 12 oct.
WestJet Logo
1:50 p.m. - 7:13 a.m.SEA-YHZ
13h 23m1 stop
WestJet Logo
7:00 a.m. - 12:35 p.m.YHZ-SEA
9h 35m1 stop
C$ 362WestJet
Find Deal
dom., 5 oct. - dom., 12 oct.
Multiple Airlines Logo
11:10 p.m. - 12:24 a.m.SEA-YHZ
21h 14m2 stops
Multiple Airlines Logo
7:00 a.m. - 12:35 p.m.YHZ-SEA
9h 35m1 stop
C$ 414Multiple Airlines
Find Deal
mar., 7 oct. - mié., 8 oct.
Air Canada Logo
12:00 p.m. - 1:49 a.m.SEA-YHZ
9h 49m1 stop
Air Canada Logo
5:45 a.m. - 2:16 p.m.YHZ-SEA
12h 31m2 stops
C$ 464Air Canada
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lun., 6 oct. - sáb., 11 oct.
Multiple Airlines Logo
11:10 p.m. - 11:40 p.m.SEA-YHZ
20h 30m2 stops
Multiple Airlines Logo
7:35 p.m. - 12:35 p.m.YHZ-SEA
21h 00m1 stop
C$ 466Multiple Airlines
Find Deal
jue., 2 oct. - mié., 8 oct.
Air Canada Logo
5:30 a.m. - 6:26 p.m.SEA-YHZ
8h 56m1 stop
Air Canada Logo
5:45 a.m. - 2:16 p.m.YHZ-SEA
12h 31m2 stops
C$ 495Air Canada
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mié., 8 oct. - jue., 9 oct.
United Airlines Logo
12:00 p.m. - 1:49 a.m.SEA-YHZ
9h 49m1 stop
United Airlines Logo
5:25 a.m. - 10:59 a.m.YHZ-SEA
9h 34m1 stop
C$ 506United Airlines
Find Deal
vie., 3 oct. - jue., 9 oct.
United Airlines Logo
7:37 p.m. - 3:53 p.m.SEA-YHZ
16h 16m2 stops
United Airlines Logo
5:25 a.m. - 10:59 a.m.YHZ-SEA
9h 34m1 stop
C$ 515United Airlines
Find Deal

Everything you should know

Top airlines
WestJet
Cheapest • from C$ 330 (round-trip)
Air Canada
Best reviews • 7.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 49% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 54% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
C$ 330
Overall average: C$ 693
WestJet
jue. 2/10dom. 12/10
SEA - YHZ • 2 stops
Cheapest one-way flights
C$ 361
Air Canada
mar. 23/12
SEA - YHZ • 1 stop
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We hope you love your trip to Halifax!
Booking Insights

KAYAK's insights & trends for Seattle to Halifax flights

Get data-powered insights and trends into flights from Seattle to Halifax to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Seattle to Halifax?

The average price of all round-trip flights from Seattle to Halifax clicked on KAYAK for each day over the last 12 months.

For Seattle to Halifax, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Halifax back to Seattle, the best deals are generally found on Sunday, with Friday being the most expensive.

What is the cheapest month to fly from Seattle to Halifax?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Halifax, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Halifax is April, where tickets cost C$ 359 (return) on average. On the other hand, the most expensive months are February and December, where the average cost of round-trip tickets is C$ 1,090 and C$ 1,055 respectively.

How far in advance should I book a flight from Seattle to Halifax?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Halifax, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Halifax, you should book around 4 weeks before departure, which saves you about 49% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Find deals

Good to know

Low seasonFebruary
Cheapest flightC$ 330
Best time to beat the crowds but there is an average 39% increase in price.
Most popular time to fly (2% more expensive on average)
Flight from Seattle to Halifax

When to book flights from Seattle to Halifax

Are your dates flexible? Find out the best times to travel from Seattle to Halifax based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Halifax

  • What is the cheapest flight from Seattle to Halifax?

    In the last 3 days, the lowest price for a flight from Seattle to Halifax was C$ 261 for a one-way ticket and C$ 239 for a round-trip.

  • Which aircraft models fly most regularly from Seattle to Halifax?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Halifax?

    Star Alliance is the only airline alliance operating flights between Seattle and Halifax.

  • How does KAYAK find such low prices on flights from Seattle to Halifax?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Halifax.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Halifax?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Halifax from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Halifax?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Halifax with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Halifax?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Halifax from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Seattle to Halifax

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Halifax. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Halifax? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
Air CanadaOverall score based on 10000 reviews
7.1Comfort
6.8Entertainment
7.8Crew
7.3Boarding
6.3Food
Airline reviews

Last minute cancellation, followed by last minute delay with the rescheduled flight. Both due to interval operation issues. Poor resolution.Very disappointing.

2.0 MediocreAnonymous, Aug 2025YYZ - YHZ
Read more Air Canada reviews

Last minute cancellation, followed by last minute delay with the rescheduled flight. Both due to interval operation issues. Poor resolution.Very disappointing.

They could care less about you. Just under a 4 hour delay in Seattle, leading into a missed connection in Vancouver, which led to 2 more delays that added up to 3 more hours leaving us to have to sleep on the floor of the Toronto airport cause they don't help you find accomodations and they just book you on the next flight out. Took an additional 14 hours to get home. Always given the brush off to get rid of us. Worst airline ever

On-time boarding, departure, and flight. Electronic notifications about bags for the whole of their own journey too - from when they got accepted into the system through to being loaded onto the plane and then finally being disgorged onto the right carousel. That was an excellent feature.

Everything was fine, crew was great. Always appreciate an on-time flight.

All was good with comfort and ease of boarding. There was confusion from what gate to board at. Meant moving a long distance but I allowed plenty of time for this.

Good airport. Good entertainment on the big flight. Did not have a good way to prop up or mount my phone/ipad

Old, noisy plane, bad coffee, delayed. Flight attendant was very nice.

Air Canada at SeaTac was the best. Polite, helpful, all good!

The problem in part was with the airports, not really the fault of Air Canada. Confusing directions regarding the gate, in Seattle the recommended shuttle train entrance was not working. Simular problems in Toronto. Baggage arrived in good time. Marx Bros movie on entertainment from Seattle. I was told I was laughing too loudly, by the flight attendant. No lounge in Seattle. Lounge in Toronto excellent.

Speechless! How professionally running. I am so proud of Air Canada 🍁 👏 ..

Everything you need to know for your flight from Seattle to Halifax

Information on your arrival and departure airports

Seattle (SEA)
Halifax (YHZ)

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